Heat-exchange tubes
The plant has developed production of bimetallic ribbed tubes with spiral fins, with spiral ribs, both without incision of ribs (type ГБМ) and with an incision (types КВСП, ТЭМЗ), the most effective in heat transfer for heat exchangers for various purposes.
The initial blanks for production of bimetallic tubes are plain end tubes. The inner tube, made of non-ferrous metal, provides high corrosion resistance to the liquid medium, the outer tube (material of fins) material is aluminum and has a high heat transfer efficiency.
Technical characteristics of the tube:
| Diameter of supporting tube, mm | 12 - 40 |
| Diameter at the base of the fins, mm | 18 - 40 |
| Maximum fin height, mm | 18 |
| Fin spacing, mm | 2,4 – 8,0 |
| Maximum outer diameter, mm | 60 |
| Length, mm | 300 - 12000 |
| Main tube material | copper, brass and their alloys |
| Finning material | aluminum, copper and their alloys |
| Figure type and number | Material of supporting tube | Water versions |
Finning material |
Surface of 1 lin.m tube washed by water, m2 | Surface of 1 lin.m tube washed by air, m2 | Heat transfer coefficient kW / m2 ° С |
Aerodynamic resistance, Pa |
| Speed of water (of oil) 1m / s (2m / s), (3m / s) Speed of air 2m / s (4m / s), (6m / s) | |||||||
| ТКЛУ.067346.002 СБ (type ГБМ) | Л68 | Н, М | АД1 | 0,053 | 0,7 | 0,045 (0,07), (0,1) | 12,7 (41,1), (82,2) |
| 12Х18Н10Т | М2, М5 | 0,053 | 0,7 | 0,045 (0,07), (0,1) | 12,7 (41,1), (82,2) | ||
| МНЖМц30-1-1 | М2, М5 | 0,053 | 0,7 | 0,045 (0,07), (0,1) | 12,7 (41,1), (82,2) | ||
| ТКЛУ.067346.003 СБ (type КВСП) | Л68 | Н, М | АД1 | 0,053 | 0,75 | 0,07 (0,11), (0,15) | 16,7 (57,9), (118,7) |
| 12Х18Н10Т | М2, М5 | 0,053 | 0,75 | 0,07 (0,11), (0,15) | 16,7 (57,9), (118,7) | ||
| МНЖМц30-1-1 | М2, М5 | 0,053 | 0,75 | 0,07 (0,11), (0,15) | 16,7 (57,9), (118,7) | ||
| ТКЛУ.067346.006 СБ (type ТЭМЗ) | Л68 | Н, М | АД1 | 0,053 | 0,72 | 0,067 (0,1), (0,127) | 11,2 (49), (105) |
| 12Х18Н10Т | М2, М5 | 0,053 | 0,72 | 0,067 (0,1), (0,127) | 11,2 (49), (105) | ||
| МНЖМц30-1-1 | М2, М5 | 0,053 | 0,72 | 0,067 (0,1), (0,127) | 11,2 (49), (105) | ||
|
Reference designation by order:
КВСП 1200-24/24-Л68 ТКЛУ.067347.003, where:
КВСП – tube bundle type;
1200 – tube length, mm;
24/24 – groove on both sides, mm;
Л68 – support tube material
Note:
For tropical versions:
Covering of the outer surface of the support tube Гор. ПОС-40.9.
Coating of the outer surface of finning Ан. Окс. Н. хр.